820 VALERIANACEAE 



fruit ovate, 4-5 mm. long. Hillsides and dry meadows: Mont. Colo. Utah- 

 Ida. Submont. Subalp. Je-Au. 



2. V. trachycarpa Rydb. Stem glabrous or nearly so, 5-7 dm. high; basal 

 leaves 7-18 cm. long, finely puberulent; stem-leaves 1-2 pairs, pinnatifid with 

 linear lobes; corolla of the essentially pistillate plant 1-1.5 mm. wide; fruit not 

 hairy, 5 mm. long, 2.5 mm. wide. Mountains: Wyo. N.M. Utah. Sub- 

 mont. Mont. Jl-S. 



3. V. furfurescens A. Nels. Stem glabrous, 5-10 dm. high; basal leaves 

 1-2 dm. long; stem-leaves few, entire or with a few approximate divisions; 

 bracts linear; bractlets lanceolate; corolla of staminate flowers light yellow; 

 stamens scarcely exserted; corolla of pistillate flowers about 0.5 mm. high and 

 broad; fruit 3-4 mm. long, 1.5 mm. wide. Hillsides and mountains: Wyo. 

 Colo. Submont. Mont. Jl. 



4. V. ceratophylla (Hook.) Piper. Stem 4-8 dm. high, glabrous; basal 

 leaves oblanceolate, puberulent on the veins and margins, 1-2 dm. long; bracts 

 and bractlets linear or linear-lanceolate; pistillate corolla 1-1.5 mm. wide; fruit 

 4-5 mm. long, scarcely 2 mm. wide. Patrinia ceratophylla Hook. Grassy 

 slopes and meadows: Mont. Wyo. Ore. B.C. Submont. Mont. My-Jl. 



5. V. pubicarpa Rydb. Stem 2-4 dm. high; basal leaves spatulate or 

 oblanceolate, 2-6 cm. long, glabrous or nearly so; stem-leaves 2-4 pairs, the 

 lowest pair similar to the basal ones, the rest 3-5-foliate, or the uppermost 

 simple, minute; leaflets oblong or lanceolate, 2-5 cm. long, entire; inflorescence 

 short and dense; corolla 4-6 mm. long, 4 mm. wide, pubescent; fruit 5 mm. long. 

 Mountains: Mont. Utah Ida. Submont. Mont. Je-Au. 



6. V. puberulenta Rydb. Stem 1.5-3 dm. high; basal leaves spatulate, 

 2-5 cm. long; stem-leaves 1-3 pairs, usually 3-foliolate; terminal leaflet elliptic 

 or oblong to lanceolate, 1-3 cm. long, the lateral ones about half as long; inflor- 

 escence of the pistillate plants corymbiform, that of the smaller staminate ones 

 subcapitate; corolla 4-5 mm. long, 2.5-3 mm. wide; fruit nearly 5 mm. long 

 and 2 mm. wide. Mountains: Utah. Submont. Mont. Je-Au. 



7. V. micrantha E. Nels. Stem glabrous or nearly so; basal leaves 

 entire or with 1-2 pairs of small rounded or oblong lobes on the petioles; blades 

 or terminal leaflets ovate or elliptic, 3-7 cm. long; cauline leaves with 5-7 ellip- 

 tic to lanceolate leaflets: cyme as broad as high or broader; corolla white, the 

 staminate ones 2-3 mm. broad and high, the pistillate barely 2 mm.; achenes 

 narrowly ovate, 3-4 mm. long, pubescent, at least when young. Mountains: 

 Mont. Colo. Utah Ida. Submont. Mont. Jl-Au. 



8. V. ovata Rydb. Stem about 3 dm. high, glabrous; basal leaves entire, 

 petioled, glabrous; blades ovate, usually truncate or slightly cordate at the base; 

 stem-leaves 2-3 pairs; lateral lobes oblong to linear-lanceolate, the terminal 

 one lanceolate or of the lower leaves elliptic; inflorescence small and corymbi- 

 form; corolla funnelform-salvershaped, about 8 mm. long; limb of the fertile 

 flowers about 4 mm. wide, that of the staminate ones about 6 mm. wide; fruit 

 ovate, glabrous, 4 mm. long. Wooded hillsides: Colo. N.M. Mont. My-Jl. 



9. V. septentrionalis Rydb. Stem weak and slender, 2-5 dm. high, gla- 

 brous or nearly so; basal leaves usually entire; blades spatulate or elliptic, 2-5 

 cm. long; stem-leaves usually 2 pairs, with 3-7 leaflets; terminal leaflet usually 

 elliptic, twice as large as the lanceolate lateral ones; fruit 4 mm. long, 1.5 mm. 

 wide. V. wyomingensis E. Nels. Hillsides and meadows: Lab. Que. Nev. 

 B.C. Submont. Mont. My-Jl. 



10. V. acutiloba Rydb. Stem of fertile plant 4-5 dm. high; basal leaves 

 entire, 5-7 cm. long; blade spatulate or obovate, acute; stem-leaves usually 3 

 pairs, pinnately divided; lateral divisions lanceolate to linear, long-acuminate, 

 the terminal one large, oblanceolate or of the upper leaves linear-lanceolate, 

 entire or saliently toothed; cyme dense, contracted; corolla about 4.5 mm. long; 

 fruit broadly ovate, about 4 mm. long; staminate plant lower, 3-4 dm. high, 

 with more sterile shoots; stem-leaves usually only 2 pairs, less divided, with 

 only 1-2 pairs of lateral divisions; cymes denser; corolla 5-6 mm. long, more 



